Parameters Identification of Equivalent Model of Permanent Magnet Synchronous Generator (PMSG) Wind Farm Based on Analysis of Trajectory Sensitivity

Jian Zhang, Mingjian Cui and Yigang He
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Jian Zhang: School of Electric and Automation Engineering, Hefei University of Technology, Heifei 230009, China
Mingjian Cui: School of Electric and Electronic Engineering, The University of Tennessee, Knoxville, TN 37996-0150, USA
Yigang He: School of Electric and Automation, Wuhan University, Wuhan 430072, China

Energies, 2020, vol. 13, issue 18, 1-18

Abstract: As wind farms have great influences on power system stability, it is essential to develop an adaptive as well as robust equivalent model of it. In this paper, a detailed equivalent model of PMSG wind farm and initialization method is developed. The trajectory sensitivity of parameters is analyzed. Then, the key parameters are estimated using improved Genetic Learning Particle Swarm Optimization (GLPSO) hybrid algorithm with phasor measurement unit (PMU). The description and generalization capability, stability for parameter identification of the equivalent model under wake effects, and when some wind turbines are off-line or wind speed is unknown after an event are analyzed. The maximum differences between the values of estimated parameters and their real ones are less than 10% for the proportional magnification constant of DC voltage controller K p 2 and grid side current controller K p 3 . The convergence rate and global optimization performance of the improved GLPSO hybrid algorithm is 0.5 times higher than the classical particle swarm optimization algorithm (PSO) and genetic algorithm (GA).

Keywords: PMSG; trajectory sensitivity; parameter identification; improved GLPSO hybrid algorithm (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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